Classification of SN 2005kx, a Type II Supernova
ATel #667; The Nearby Supernova Factory: G. Aldering, S. Bailey, S. Bongard, D. Kocevski, B. C. Lee, S. Loken, P. Nugent, S. Perlmutter, R. Scalzo, R. C. Thomas, L. Wang, B. A. Weaver (Lawrence Berkeley National Laboratory, Berkeley, CA), N. Blanc, Y. Copin, E. Gangler, L. Sauge, G. Smadja (Institut de Physique Nucleaire de Lyon), P. Antilogus, S. Gilles, R. Pain, R. Pereira (Laboratoire de Physique Nucleaire et de Haute Energies de Paris), E. Pecontal, G. Rigaudier (Centre de Recherche Astronomique de Lyon), R. Kessler (Kavli Institute for Cosmological Physics, Chicago, IL), C. Baltay, D. Rabinowitz, A. Bauer (Yale)
on 1 Dec 2005; 04:53 UT
Distributed as an Instant Email Notice Supernovae
Credential Certification: R. C. Thomas (rcthomas@lbl.gov)
Subjects: Infra-Red, Optical, Ultra-Violet, Supernovae
The Nearby Supernova Factory reports that a spectrum (range 320-1000 nm) of SN 2005kx (IAUC # 8635 ) in NGC 3197, obtained November 30.6 with the Supernova Integral Field Spectrograph on the University of Hawaii 2.2-meter telescope, reveals that it is a young Type II SN. The spectrum includes P Cygni profiles from the hydrogen Balmer series and He I 587.6 on a blue continuum. Assuming a host redshift of z = 0.026975 (Falco et al. 1999 111, 438 via NED), we remark that the H-alpha emission peak is clearly blueshifted from its restframe wavelength by 3500 km/s; an effect which has been observed in other young SNe II (Dessart and Hillier 2005 A&A 437, 667).